How to replace the vacuum brake booster on Chevrolet Blazer?

Apply the parking brake then take out the master cylinder from the vacuum booster while supporting the booster afterward. First unplug the check valve from the vacuum booster and then take out the left control panel cover. First remove the brake pedal pin retainer and afterward take down the stop lamp switch and Pushrod in sequence. Unbolt both the vacuum booster mounting nuts then pull out the vacuum booster assembly with its gasket. First secure the vacuum booster assembly onto its gasket then fit the vacuum booster mounting nuts and torque them to 40 nm . Place the Pushrod onto the brake pedal pin then connect all parts starting with the steering column support bracket and stop lamp switch. Lock the Pushrod retainer into position through its snap mechanism. Complete the job by putting back the cover and insulator panel on the left side along with the check valve to the vacuum booster and the master cylinder.

OEM Chevrolet Blazer Brake Booster

Brake Power Booster

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Chevrolet Blazer Brake Booster Part Number: 15597788
$548.15 MSRP: $678.70
You Save: $130.55 (20%)
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Product Specifications
- Other Name: Booster, Power Brake (Hydraulic); Booster, Hydraulic Power Brake Booster; Booster, Vacuum Power Brake
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1990 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 84730945
$113.30 MSRP: $221.82
You Save: $108.52 (49%)
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Product Specifications
- Other Name: Booster Kit-Power Brake (Vacuum); Power Booster; Booster Kit, Vacuum Power Brake
- Replaces: 84486952, 23371176
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | Base, L, LT, Premier, RS | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Chevrolet Blazer Brake Booster Part Number: 18060061
Product Specifications
- Other Name: Booster, Hydraulic Power Brake Booster; Booster, Vacuum Power Brake
- Replaces: 18012114
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991 Chevrolet Blazer | Scottsdale, Silverado | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 18029985
Product Specifications
- Other Name: Booster, Power Brake; Booster, Hydraulic Power Brake Booster
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | Base, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 15607066
Product Specifications
- Other Name: Booster, Power Brake (Hydraulic); Booster, Hydraulic Power Brake Booster
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Chevrolet Blazer | Cheyenne, Silverado | 8 Cyl 5.7 L GAS
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Chevrolet Blazer Brake Booster Part Number: 14019978
Product Specifications
- Other Name: Booster Assembly, Power Brake Booster (Hydraulic); Booster Assembly, Power Brake Booster (Hydraulic); Hydraulic Power Brake Booster
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1990 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 18060072
Product Specifications
- Other Name: Booster, Hydraulic Power Brake Booster; Booster, Vacuum Power Brake
- Replaces: 18013061
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 18029999
Product Specifications
- Other Name: Booster, Power Brake; Booster, Hydraulic Power Brake Booster
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-1997 Chevrolet Blazer | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Brake Booster Part Number: 15607067
Product Specifications
- Other Name: Booster, Hydraulic Power Brake Booster
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991 Chevrolet Blazer | Scottsdale, Silverado | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Brake Booster Part Number: 15234951
Product Specifications
- Other Name: Booster, Power Brake; Booster, Hydraulic Power Brake Booster
- Replaces: 18029871
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS

Chevrolet Blazer Brake Booster

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The Chevrolet Blazer Brake Booster is a critical component that helps to lessen the degree of pressure required to activate the automobile's brakes. By means of a vacuum chamber the Brake Booster increases the hydraulic pressure coming from the master cylinder, thereby increasing the force applied upon the brake pedal by the driver. There are two main types of boosters used in Chevrolet Blazers: Auto operated boosters including vacuum-operated boosters and hydraulic boosters. Vacuum boosters work on relative vacuum produced by the engines and the hydraulic boosters are those which work on fluid pressure for applying brakes. Brake booster is a trusted system needed in any automobile, though sometimes it might malfunction often requiring repairs or replacement. There are many power brake boosters that are specific to Chevrolet Blazer as well as are available universally for different cars with different diameters and varying requisite of finish as per the owner, and in accordance with the available space in the engine compartment of the car.

Chevrolet Blazer Brake Booster Parts and Q&A

Brake Booster
15234951
Q: How to replace the vacuum brake booster on Chevrolet Blazer?
A:
Apply the parking brake then take out the master cylinder from the vacuum booster while supporting the booster afterward. First unplug the check valve from the vacuum booster and then take out the left control panel cover. First remove the brake pedal pin retainer and afterward take down the stop lamp switch and Pushrod in sequence. Unbolt both the vacuum booster mounting nuts then pull out the vacuum booster assembly with its gasket. First secure the vacuum booster assembly onto its gasket then fit the vacuum booster mounting nuts and torque them to 40 nm . Place the Pushrod onto the brake pedal pin then connect all parts starting with the steering column support bracket and stop lamp switch. Lock the Pushrod retainer into position through its snap mechanism. Complete the job by putting back the cover and insulator panel on the left side along with the check valve to the vacuum booster and the master cylinder.